Hello, I would like to know for which studies is a coarse mesh used and for which fine mesh.
With fine meshing, the calculation takes longer and is more accurate, right? I'm trying to mesh this piece but I don't know which one to choose.
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A fine mesh will always give a better result, but will take more computation time.
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What you can do is put a medium mesh for the whole study and put finer "Mesh Control" in the areas where you want to pay attention.
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The fine mesh allows you to have a better overview of the stresses in the highly constrained areas (in cases where there is no radius as at the junction of your big cylinder and small cylinder (the pins in your case).
The finer the mesh on these areas, the more reliable your result is. But you shouldn't quibble about Peanuts
In general, a coarse mesh is enough to have good approximations. Also fine meshing is useful for complex connections within the same part or two different bodies.
I take a simple rule, I make a coarse mesh and if the system doesn't complain saying that the mesh is too coarse, I let it run because it goes faster because the number of nodes to analyze is quite small.
In your case, a mesh size of 1/3 the diameter of your spindle should be enough.
I then look at the orange and red areas and I put a probe to see the max effort on the simu. If it stays below the yield limit with the safety coeff which is fine, I'll leave it at that.
Otherwise if there is a problem I look at the links between the areas to see if a fine mesh improves the result.
That's the main thing, but it's more complicated to explain
Kind regards
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You're right Aliende for the different meshes according to the areas but as @Snouzy is not trained in simu I didn't want to confuse him with the more advanced functions :-)
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With different mesh, the strength changes very little between coarse and fine.
The spindle is 5mm in diameter so I take 1.6 so we are in a fine mesh.
Anyway there is very little difference between the 2 meshes in my case, so I think the 2 are suitable.
capture.png
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Good evening Snouzy13
Be careful, there is a min and a max as you can see in your screenshot.
You can vary min and max independently (try)
The finer one will be applied automatically where the software needs it for the calculation
The max value allows you to reduce the number of elements to be calculated on low-stress areas or on large surfaces.
I also see that you didn't check "automatic transition" which improves the result in many cases in areas where the coarse mesh meets the fine mesh.
Kind regards
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